864586984305 has 16 divisors (see below), whose sum is σ = 1509097281984. Its totient is φ = 419193689280.

The previous prime is 864586984243. The next prime is 864586984361. The reversal of 864586984305 is 503489685468.

It is not a de Polignac number, because 864586984305 - 2¹⁸ = 864586722161 is a prime.

It is a super-2 number, since 2×864586984305² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2619960394 + ... + 2619960723.

It is an arithmetic number, because the mean of its divisors is an integer number (94318580124).

Almost surely, 2^864586984305 is an apocalyptic number.

It is an amenable number.

864586984305 is a deficient number, since it is larger than the sum of its proper divisors (644510297679).

864586984305 is a wasteful number, since it uses less digits than its factorization.

864586984305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239921136.

The product of its (nonzero) digits is 199065600, while the sum is 66.

The spelling of 864586984305 in words is "eight hundred sixty-four billion, five hundred eighty-six million, nine hundred eighty-four thousand, three hundred five".